NEET 2018 Chemistry Order of Reactions MCQ Question
The CORRECT difference between first- and second-order reactions is that __________.
the rate of the first-order reaction does not depend on reactant concentrations; the rate of a second-order reaction depends on reactant concentrations
the half-life of a first-order reaction does not depend on [A]₀; the half-life of a second-order reaction depends on [A]₀
a first-order reaction can be catalyzed; a second-order reaction cannot be catalyzed
the rate of a first-order reaction depends on reactant concentrations; the rate of a second-order reaction does not depend on reactant concentrations
Correct Answer
Detailed Explanation
For first-order reactions, the half-life is independent of initial concentration, while for second-order reactions, it is inversely proportional to the initial concentration.
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